title: Direct generation of a multi-transverse mode non-classical state of light.
abstract: Quantum computation and communication protocols require quantum resources which are in the continuous variable regime squeezed and/or quadrature entangled optical modes. To perform more and more complex and robust protocols, one needs sources that can produce in a controlled way highly multimode quantum states of light. One possibility is to mix different single mode quantum resources. Another is to directly use a multimode device, either in the spatial or in the frequency domain. We present here the first experimental demonstration of a device capable of producing simultaneously several squeezed transverse modes of the same frequency and which is potentially scalable. We show that this device, which is an Optical Parametric Oscillator using a self-imaging cavity, produces a multimode quantum resource made of three squeezed transverse modes.
authors.affiliation: Laboratoire Kastler Brossel, Université Pierre et Marie Curie, ENS, CNRS, Paris, France. benoit.chalopin@mpl.mpg.de
authors.forename: Benoît
authors.initials: B
authors.lastname: Chalopin
authors.forename: Francesco
authors.initials: F
authors.lastname: Scazza
authors.forename: Claude
authors.initials: C
authors.lastname: Fabre
authors.forename: Nicolas
authors.initials: N
authors.lastname: Treps
mesh_terms: D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation* / Q000379:methods*